You receive one HO 1:87 master STL of a compact midcentury American rooftop equipment housing — a rooftop HVAC / electrical cabinet style scenic prop evocative of 1940s–1960s industrial architecture. The model reads well at HO scale: a softened blocky silhouette, grouped raised rectangular panel zones suggesting access doors, and thin fin-like protrusions that add mechanical interest. The STL is supplied as a single HO 1:87 master; to print at other scales uniformly rescale the file in your slicer (examples: to O scale 1:48 multiply by 1.8125; to N scale 1:160 multiply by 0.54375). This file came from a legacy MeshRef export and may require mesh repair — run an automated pass to correct duplicate faces, flipped normals, or nonmanifold edges before slicing. Printing tips: resin printing at low layer heights preserves panel crispness and fin detail; for FDM, orient the model on a broad face, increase perimeters, and use a brim for small feet. Use-cases: rooftop HVAC cabinet, electrical box on a factory roof, background equipment for dioramas and model-railroad layouts, and kitbash components. Paint with flat industrial tones and weather with washes and drybrushing for the most convincing midcentury look.

Available railroad scales: Z (1:220), N (1:160), HO (1:87.1), S (1:64), O (1:48)

Ready to print digital download in one piece with no assembly needed.

IMPORTANT: You are purchasing the file in the scale selected below.

Miniature Reality Makes practical, print-ready scenery and vehicles so you can economically fill out the background of your layout, diorama, or tabletop without paying centerpiece prices for everything (Our hobbies are dying because the average person can't afford to enjoy them, we want to help fix that). We want your miniature worlds to feel real and full of life - with more variety, more detail in every scene, and prices that won't hold you back.

Miniature Reality Personal-Use License (No AI / No Resale)

• Allowed: personal printing for your own layouts, dioramas, tabletop games, and personal display.
• Not allowed: sharing or distributing the digital files (free or paid), re-uploading to any site, bundling, remix resale, or selling/redistributing printed outputs.
• Not allowed: using the files (or derivatives) to train, fine-tune, test, or feed any AI/ML system (including dataset creation).
• Not allowed: commercial use of any kind without a separate written commercial license from Miniature Reality.
• Enforcement note: digital files may include purchaser-linked identifiers / forensic watermarking to help investigate unauthorized distribution.